BRAZIL: The Treasure of Serra Pelada

Deep in Brazil's Amazon jungle, thousands of dust-covered laborers swarm
over a mountain of red earth, using their pickaxes and shovels to carve
its surface into a bizarre landscape. It is a scene that could belong
to an outlandish biblical epic movie or a sinister labor camp. It is
neither. Serra Pelada (Bald Mountain), 270 miles south of the mouth of
the Amazon River, is the site of one of the biggest gold rushes in
modern Brazilian history. It is also an experiment by Brazil's...